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He said: "One of the problems we are seeing in Haverhill and other towns is something called cuckooing.

"This is where a vulnerable person lives at an address and will be targeted. They may be a user themselves of drugs.

"Drug dealers will come to the area, identify them and go into the house. On many occasions they've been drug dealers from London. They will go inside the house, supply drugs, but then in return they want to use the property to do their dealing from.

"But then when the person wants them to leave they won't necessarily - and that's when we get the problems reported."

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Inspector Cooper is working with other Suffolk forces as part of a countywide action called 'Operation Velocity' to tackle drugs in the area.

Community intelligence has been credited as a key player in helping the force identify the worst offenders.

Inspector Cooper said: "We gather information from various sources including officers when they're on patrol and community intelligence as well that the public have given us and crucial information, We collate that information to do warrants at addresses .

"That's when we will execute warrants when necessary and help safeguard that vulnerable person. "